SBASAU4 March   2024 PCM6140-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Timing Requirements: I2C Interface
    7. 6.7  Switching Characteristics: I2C Interface
    8. 6.8  Timing Requirements: SPI Interface
    9. 6.9  Switching Characteristics: SPI Interface
    10. 6.10 Timing Requirements: TDM, I2S or LJ Interface
    11. 6.11 Switching Characteristics: TDM, I2S or LJ Interface
    12. 6.12 Timing Requirements: PDM Digital Microphone Interface
    13. 6.13 Switching Characteristics: PDM Digial Microphone Interface
    14. 6.14 Timing Diagrams
    15. 6.15 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Serial Interfaces
        1. 7.3.1.1 Control Serial Interfaces
        2. 7.3.1.2 Audio Serial Interfaces
          1. 7.3.1.2.1 Time Division Multiplexed Audio (TDM) Interface
          2. 7.3.1.2.2 Inter IC Sound (I2S) Interface
          3. 7.3.1.2.3 Left-Justified (LJ) Interface
        3. 7.3.1.3 Using Multiple Devices With Shared Buses
      2. 7.3.2  Phase-Locked Loop (PLL) and Clock Generation
      3. 7.3.3  Input Channel Configurations
        1. 7.3.3.1 Common Mode Tolerance Selection
      4. 7.3.4  Reference Voltage
      5. 7.3.5  Programmable Microphone Bias
      6. 7.3.6  Signal-Chain Processing
        1. 7.3.6.1 Programmable Channel Gain and Digital Volume Control
        2. 7.3.6.2 Programmable Channel Gain Calibration
        3. 7.3.6.3 Programmable Channel Phase Calibration
        4. 7.3.6.4 Programmable Digital High-Pass Filter
        5. 7.3.6.5 Programmable Digital Biquad Filters
        6. 7.3.6.6 Programmable Channel Summer and Digital Mixer
        7. 7.3.6.7 Configurable Digital Decimation Filters
          1. 7.3.6.7.1 Linear Phase Filters
            1. 7.3.6.7.1.1 Sampling Rate: 8 kHz or 7.35 kHz
            2. 7.3.6.7.1.2 Sampling Rate: 16 kHz or 14.7 kHz
            3. 7.3.6.7.1.3 Sampling Rate: 24 kHz or 22.05 kHz
            4. 7.3.6.7.1.4 Sampling Rate: 32 kHz or 29.4 kHz
            5. 7.3.6.7.1.5 Sampling Rate: 48 kHz or 44.1 kHz
            6. 7.3.6.7.1.6 Sampling Rate: 96 kHz or 88.2 kHz
            7. 7.3.6.7.1.7 Sampling Rate: 192 kHz or 176.4 kHz
            8. 7.3.6.7.1.8 Sampling Rate: 384 kHz or 352.8 kHz
            9. 7.3.6.7.1.9 Sampling Rate 768 kHz or 705.6 kHz
          2. 7.3.6.7.2 Low-Latency Filters
            1. 7.3.6.7.2.1 Sampling Rate: 16 kHz or 14.7 kHz
            2. 7.3.6.7.2.2 Sampling Rate: 24 kHz or 22.05 kHz
            3. 7.3.6.7.2.3 Sampling Rate: 32 kHz or 29.4 kHz
            4. 7.3.6.7.2.4 Sampling Rate: 48 kHz or 44.1 kHz
            5. 7.3.6.7.2.5 Sampling Rate: 96 kHz or 88.2 kHz
            6. 7.3.6.7.2.6 Sampling Rate 192 kHz or 176.4 kHz
          3. 7.3.6.7.3 Ultra-Low-Latency Filters
            1. 7.3.6.7.3.1 Sampling Rate: 16 kHz or 14.7 kHz
            2. 7.3.6.7.3.2 Sampling Rate: 24 kHz or 22.05 kHz
            3. 7.3.6.7.3.3 Sampling Rate: 32 kHz or 29.4 kHz
            4. 7.3.6.7.3.4 Sampling Rate: 48 kHz or 44.1 kHz
            5. 7.3.6.7.3.5 Sampling Rate: 96 kHz or 88.2 kHz
            6. 7.3.6.7.3.6 Sampling Rate 192 kHz or 176.4 kHz
            7. 7.3.6.7.3.7 Sampling Rate 384 kHz or 352.8 kHz
      7. 7.3.7  Dynamic Range Enhancer (DRE)
      8. 7.3.8  Automatic Gain Controller (AGC)
      9. 7.3.9  Digital PDM Microphone Record Channel
      10. 7.3.10 Interrupts, Status, and Digital I/O Pin Multiplexing
    4. 7.4 Device Functional Modes
      1. 7.4.1 Hardware Shutdown
      2. 7.4.2 Sleep Mode or Software Shutdown
      3. 7.4.3 Active Mode
      4. 7.4.4 Software Reset
    5. 7.5 Programming
      1. 7.5.1 Control Serial Interfaces
        1. 7.5.1.1 I2C Control Interface
          1. 7.5.1.1.1 General I2C Operation
          2. 7.5.1.1.2 I2C Single-Byte and Multiple-Byte Transfers
            1. 7.5.1.1.2.1 I2C Single-Byte Write
            2. 7.5.1.1.2.2 I2C Multiple-Byte Write
            3. 7.5.1.1.2.3 I2C Single-Byte Read
            4. 7.5.1.1.2.4 I2C Multiple-Byte Read
        2. 7.5.1.2 SPI Control Interface
  9. 8 Register Maps
    1. 8.1 Device Configuration Registers
      1. 8.1.1 Register Descriptions
        1. 8.1.1.1  PAGE_CFG Register (page = 0x00, address = 0x00) [reset = 0h]
        2. 8.1.1.2  SW_RESET Register (page = 0x00, address = 0x01) [reset = 0h]
        3. 8.1.1.3  SLEEP_CFG Register (page = 0x00, address = 0x02) [reset = 0h]
        4. 8.1.1.4  SHDN_CFG Register (page = 0x00, address = 0x05) [reset = 5h]
        5. 8.1.1.5  ASI_CFG0 Register (page = 0x00, address = 0x07) [reset = 30h]
        6. 8.1.1.6  ASI_CFG1 Register (page = 0x00, address = 0x08) [reset = 0h]
        7. 8.1.1.7  ASI_CFG2 Register (page = 0x00, address = 0x09) [reset = 0h]
        8. 8.1.1.8  ASI_CH1 Register (page = 0x00, address = 0x0B) [reset = 0h]
        9. 8.1.1.9  ASI_CH2 Register (page = 0x00, address = 0x0C) [reset = 1h]
        10. 8.1.1.10 ASI_CH3 Register (page = 0x00, address = 0x0D) [reset = 2h]
        11. 8.1.1.11 ASI_CH4 Register (page = 0x00, address = 0x0E) [reset = 3h]
        12. 8.1.1.12 ASI_CH5 Register (page = 0x00, address = 0x0F) [reset = 4h]
        13. 8.1.1.13 ASI_CH6 Register (page = 0x00, address = 0x10) [reset = 5h]
        14. 8.1.1.14 ASI_CH7 Register (page = 0x00, address = 0x11) [reset = 6h]
        15. 8.1.1.15 ASI_CH8 Register (page = 0x00, address = 0x12) [reset = 7h]
        16. 8.1.1.16 MST_CFG0 Register (page = 0x00, address = 0x13) [reset = 2h]
        17. 8.1.1.17 MST_CFG1 Register (page = 0x00, address = 0x14) [reset = 48h]
        18. 8.1.1.18 ASI_STS Register (page = 0x00, address = 0x15) [reset = FFh]
        19. 8.1.1.19 CLK_SRC Register (page = 0x00, address = 0x16) [reset = 10h]
        20. 8.1.1.20 PDMCLK_CFG Register (page = 0x00, address = 0x1F) [reset = 40h]
        21. 8.1.1.21 PDMIN_CFG Register (page = 0x00, address = 0x20) [reset = 0h]
        22. 8.1.1.22 GPIO_CFG0 Register (page = 0x00, address = 0x21) [reset = 22h]
        23. 8.1.1.23 GPO_CFG0 Register (page = 0x00, address = 0x22) [reset = 0h]
        24. 8.1.1.24 GPO_CFG1 Register (page = 0x00, address = 0x23) [reset = 0h]
        25. 8.1.1.25 GPO_CFG2 Register (page = 0x00, address = 0x24) [reset = 0h]
        26. 8.1.1.26 GPO_CFG3 Register (page = 0x00, address = 0x25) [reset = 0h]
        27. 8.1.1.27 GPO_VAL Register (page = 0x00, address = 0x29) [reset = 0h]
        28. 8.1.1.28 GPIO_MON Register (page = 0x00, address = 0x2A) [reset = 0h]
        29. 8.1.1.29 GPI_CFG0 Register (page = 0x00, address = 0x2B) [reset = 0h]
        30. 8.1.1.30 GPI_CFG1 Register (page = 0x00, address = 0x2C) [reset = 0h]
        31. 8.1.1.31 GPI_MON Register (page = 0x00, address = 0x2F) [reset = 0h]
        32. 8.1.1.32 INT_CFG Register (page = 0x00, address = 0x32) [reset = 0h]
        33. 8.1.1.33 INT_MASK0 Register (page = 0x00, address = 0x33) [reset = FFh]
        34. 8.1.1.34 INT_LTCH0 Register (page = 0x00, address = 0x36) [reset = 0h]
          1. 8.1.1.34.1 CM_TOL_CFG Register (page = 0x00, address = 0x3A) [reset = 0x00]
        35. 8.1.1.35 BIAS_CFG Register (page = 0x00, address = 0x3B) [reset = 0h]
        36. 8.1.1.36 CH1_CFG0 Register (page = 0x00, address = 0x3C) [reset = 0h]
        37. 8.1.1.37 CH1_CFG1 Register (page = 0x00, address = 0x3D) [reset = 0h]
        38. 8.1.1.38 CH1_CFG2 Register (page = 0x00, address = 0x3E) [reset = C9h]
        39. 8.1.1.39 CH1_CFG3 Register (page = 0x00, address = 0x3F) [reset = 80h]
        40. 8.1.1.40 CH1_CFG4 Register (page = 0x00, address = 0x40) [reset = 0h]
        41. 8.1.1.41 CH2_CFG0 Register (page = 0x00, address = 0x41) [reset = 0h]
        42. 8.1.1.42 CH2_CFG1 Register (page = 0x00, address = 0x42) [reset = 0h]
        43. 8.1.1.43 CH2_CFG2 Register (page = 0x00, address = 0x43) [reset = C9h]
        44. 8.1.1.44 CH2_CFG3 Register (page = 0x00, address = 0x44) [reset = 80h]
        45. 8.1.1.45 CH2_CFG4 Register (page = 0x00, address = 0x45) [reset = 0h]
        46. 8.1.1.46 CH3_CFG0 Register (page = 0x00, address = 0x46) [reset = 0h]
        47. 8.1.1.47 CH3_CFG1 Register (page = 0x00, address = 0x47) [reset = 0h]
        48. 8.1.1.48 CH3_CFG2 Register (page = 0x00, address = 0x48) [reset = C9h]
        49. 8.1.1.49 CH3_CFG3 Register (page = 0x00, address = 0x49) [reset = 80h]
        50. 8.1.1.50 CH3_CFG4 Register (page = 0x00, address = 0x4A) [reset = 0h]
        51. 8.1.1.51 CH4_CFG0 Register (page = 0x00, address = 0x4B) [reset = 0h]
        52. 8.1.1.52 CH4_CFG1 Register (page = 0x00, address = 0x4C) [reset = 0h]
        53. 8.1.1.53 CH4_CFG2 Register (page = 0x00, address = 0x4D) [reset = C9h]
        54. 8.1.1.54 CH4_CFG3 Register (page = 0x00, address = 0x4E) [reset = 80h]
        55. 8.1.1.55 CH4_CFG4 Register (page = 0x00, address = 0x4F) [reset = 0h]
        56. 8.1.1.56 CH5_CFG2 Register (page = 0x00, address = 0x52) [reset = C9h]
        57. 8.1.1.57 CH5_CFG3 Register (page = 0x00, address = 0x53) [reset = 80h]
        58. 8.1.1.58 CH5_CFG4 Register (page = 0x00, address = 0x54) [reset = 0h]
        59. 8.1.1.59 CH6_CFG2 Register (page = 0x00, address = 0x57) [reset = C9h]
        60. 8.1.1.60 CH6_CFG3 Register (page = 0x00, address = 0x58) [reset = 80h]
        61. 8.1.1.61 CH6_CFG4 Register (page = 0x00, address = 0x59) [reset = 0h]
        62. 8.1.1.62 CH7_CFG2 Register (page = 0x00, address = 0x5C) [reset = C9h]
        63. 8.1.1.63 CH7_CFG3 Register (page = 0x00, address = 0x5D) [reset = 80h]
        64. 8.1.1.64 CH7_CFG4 Register (page = 0x00, address = 0x5E) [reset = 0h]
        65. 8.1.1.65 CH8_CFG2 Register (page = 0x00, address = 0x61) [reset = C9h]
        66. 8.1.1.66 CH8_CFG3 Register (page = 0x00, address = 0x62) [reset = 80h]
        67. 8.1.1.67 CH8_CFG4 Register (page = 0x00, address = 0x63) [reset = 0h]
        68. 8.1.1.68 DSP_CFG0 Register (page = 0x00, address = 0x6B) [reset = 1h]
        69. 8.1.1.69 DSP_CFG1 Register (page = 0x00, address = 0x6C) [reset = 40h]
        70. 8.1.1.70 DRE_CFG0 Register (page = 0x00, address = 0x6D) [reset = 7Bh]
        71. 8.1.1.71 AGC_CFG0 Register (page = 0x00, address = 0x70) [reset = E7h]
        72. 8.1.1.72 IN_CH_EN Register (page = 0x00, address = 0x73) [reset = F0h]
        73. 8.1.1.73 ASI_OUT_CH_EN Register (page = 0x00, address = 0x74) [reset = 0h]
        74. 8.1.1.74 PWR_CFG Register (page = 0x00, address = 0x75) [reset = 0h]
        75. 8.1.1.75 DEV_STS0 Register (page = 0x00, address = 0x76) [reset = 0h]
        76. 8.1.1.76 DEV_STS1 Register (page = 0x00, address = 0x77) [reset = 80h]
        77. 8.1.1.77 I2C_CKSUM Register (page = 0x00, address = 0x7E) [reset = 0h]
    2. 8.2 Programmable Coefficient Registers
      1. 8.2.1 Programmable Coefficient Registers: Page = 0x02
      2. 8.2.2 Programmable Coefficient Registers: Page = 0x03
      3. 8.2.3 Programmable Coefficient Registers: Page = 0x04
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Four-Channel Analog Microphone Recording
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Example Device Register Configuration Script for EVM Setup
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Eight-Channel Digital PDM Microphone Recording
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Example Device Register Configuration Script for EVM Setup
    3. 9.3 What to Do and What Not to Do
      1. 9.3.1 189
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.1 Overview

The PCM6140-Q1 is a high-performance, low-power, flexible, quad-channel, audio analog-to-digital converter (ADC) with extensive feature integration. This device is intended for applications in voice-activated systems, professional microphones, audio conferencing, portable computing, communication, and entertainment applications. The high dynamic range of the device enables far-field audio recording with high fidelity. This device integrates a host of features that reduces cost, board space, and power consumption in space-constrained, battery-powered, consumer, home, and industrial applications.

The PCM6140-Q1 consists of the following blocks:

  • Quad-channel, multibit, high-performance delta-sigma (ΔΣ) ADC
  • Configurable single-ended or differential audio inputs
  • Low-noise, programmable microphone bias output
  • Dynamic range enhancer (DRE) to support 120-dB dynamic range
  • Automatic gain controller (AGC)
  • Programmable decimation filters with linear-phase or low-latency filter
  • Programmable channel gain, volume control, biquad filters for each channel
  • Programmable phase and gain calibration with fine resolution for each channel
  • Programmable high-pass filter (HPF), and digital channel mixer
  • Pulse density modulation (PDM) digital microphone interface with high-performance decimation filter
  • Integrated low-jitter phase-locked loop (PLL) supporting a wide range of system clocks
  • Integrated digital and analog voltage regulators to support single-supply operation

Communication to the PCM6140-Q1 to configure the control registers is supported using an I2C or SPI interface. The device supports a highly flexible audio serial interface [time-division multiplexing (TDM), I2S, or left-justified (LJ)] to transmit audio data seamlessly in the system across devices.

The device can support multiple devices by sharing the common I2C and TDM buses across devices. Moreover, the device includes a daisy-chain feature and a secondary audio serial output data pin. These features relax the shared TDM bus timing requirements and board design complexities when operating multiple devices for applications requiring high audio data bandwidth.

Table 7-1 lists the reference abbreviations used throughout this document to registers that control the device.

Table 7-1 Abbreviations for Register References
REFERENCEABBREVIATIONDESCRIPTIONEXAMPLE
Page y, register z, bit kPy_Rz_DkSingle data bit. The value of a single bit in a register.Page 4, register 36, bit 0 = P4_R36_D0
Page y, register z, bits k-mPy_Rz_D[k:m]Range of data bits. A range of data bits (inclusive).Page 4, register 36, bits 3-0 = P4_R36_D[3:0]
Page y, register zPy_RzOne entire register. All eight bits in the register as a unit.Page 4, register 36 = P4_R36
Page y, registers z-nPy_Rz-RnRange of registers. A range of registers in the same page.Page 4, registers 36, 37, 38 = P4_R36-R38